What could be the causes to a Sluggish throttle response in a Manual 5.5 gen?
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Can someone please list all of the most impostant COMMON mechanical causes that can cause sluggish acceleration response In an 6 speed 5.5 generation mamxima? Considering that clutch and motor are fine....
And when i mean sluggish, i mean 0-60 in 8-9 seconds (as if the ebrake is on) type sluggish...
Thank you
And when i mean sluggish, i mean 0-60 in 8-9 seconds (as if the ebrake is on) type sluggish...
Thank you
Senior Member
As always, I'd check the MAF sensor. That's the cause of almost everything on 5.5 gens. 
Are you getting any check engine lights?
Are you getting any check engine lights?
Senior Member
Quote:
plugs
coils
a quart of oil in your cylinders
^ that or clogged up converter,watered down gas or low octane, e brake up Originally Posted by SoonerFan
MAFplugs
coils
a quart of oil in your cylinders
.
Quote:
Are you getting any check engine lights?
no check engine light but there are 2 codes... P1800 and P0328Originally Posted by Z-Powered
As always, I'd check the MAF sensor. That's the cause of almost everything on 5.5 gens. Are you getting any check engine lights?
I rescently replaced the knock sensor by the way
Senior Member
Also...
Clogged air filter
Under-inflated tire(s)
Restricted pre-cat(s)
Frozen caliper(s)
Do what you can, go to a trusted mechanic for what you can't. Take care of your car.
Clogged air filter
Under-inflated tire(s)
Restricted pre-cat(s)
Frozen caliper(s)
Do what you can, go to a trusted mechanic for what you can't. Take care of your car.
Senior Member
Quote:
Clogged air filter
Under-inflated tire(s)
Restricted pre-cat(s)
Frozen caliper(s)
Do what you can, go to a trusted mechanic for what you can't. Take care of your car.
Agreed. A lot of people dont realize and check their tire pressure regularly, but underinflated tires are KILLER for performance and fuel economy. Also regular maintenance like air filter, oil changes etc can really make a difference. Not saying an oil change will free up 30 horsepower, but you get the point...every little bit counts. Check the basics first.Originally Posted by Rochester
Also...Clogged air filter
Under-inflated tire(s)
Restricted pre-cat(s)
Frozen caliper(s)
Do what you can, go to a trusted mechanic for what you can't. Take care of your car.
Also those codes you have, do you have a block plate? A block plate may cause a VIAS code (P1800). As for the P0328(KS), do you know if it is a current code or a pending code? It may be a history code, and stored in there from when there was a problem. Try clearing the codes and see what comes back.
Senior Member
Quote:
About the VIAS... disconnecting the solenoid, or improperly capping the vacuum leads, could cause a VIAS code. That's why you leave the solenoid switch alone when you delete the VIAS valve. Delete the valve and the tank, but not the switch. The ECU needs to keep thinking it has a VIAS system to talk to.Originally Posted by byrdman164
Also those codes you have, do you have a block plate? A block plate may cause a VIAS code (P1800).
Senior Member
How does the car respond? Does it Bog after 5K rpm? Mileage? It could be clogged cats as others have mentioned. Call Cattman 
Senior Member
Quote:
Yeah youre absolutely right....forgive me, its been a long day lol..thanks for the clarification, John.Originally Posted by Rochester
About the VIAS... disconnecting the solenoid, or improperly capping the vacuum leads, could cause a VIAS code. That's why you leave the solenoid switch alone when you delete the VIAS valve. Delete the valve and the tank, but not the switch. The ECU needs to keep thinking it has a VIAS system to talk to.
It only checks itself electrically and has no "performance monitors" to even tell if the VIAS is functioning aside from the solenoid.